core components of an HTTP request?

HTTP methods: It is a set of request methods used to perform needed action for a given resource (GET, PUT, POST, and DELETE).
Uniform Resource Identifier (URI): It is a kind of address that describes the resource.
HTTP Version: It specifies the version of the HTTP. For example HTTP v1.1
Request Headers: It specifies the content type and content length of the request. For example: Content-type: application/ JSON, Content-Length: 511
Payload: It is used to specify the Request Body that includes message content.